HackingProfessional ServicesProfessional ServicesVulnerability ExploitStolen CredentialsTargetedData ExfiltratedPIIIdentity (basic)LowContained

Orrick, Herrington & Sutcliffe LLP

bd_3e42b9abcb8898e5 · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 13, 2023

Filed

Sep 7, 2023

To disclose

25 weeks

Affected

Not disclosed

Confidence

63%

Full breach record for Orrick, Herrington & Sutcliffe LLP →7 incidents on file

Orrick, Herrington & Sutcliffe, LLP notified South Carolina residents of a security event where an unauthorized third party gained remote access to client files. Access occurred between Feb 28 and Mar 13, 2023. The firm detected the breach on Mar 13, 2023, engaged forensic experts, notified law enforcement, and offered two years of identity monitoring.

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Incident timeline

undetected · 13 days

discovery → filing · 25 weeks / 178 days

Feb 28, 2023

Begins

Mar 13, 2023

Discovered

Sep 7, 2023

Filed

vs. sector median

+11 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: Orrick, Herrington & Sutcliffe LLP
norm: orrick herrington sutcliffe
Domain: orrick.com

Name: Orrick, Herrington & Sutcliffe LLP
norm: orrick herrington sutcliffe
Domain: orrick.com
Industry: Professional Servicesllm

Discovered: Mar 13, 2023
Breach occurred: Feb 28, 2023 – Mar 13, 2023
Undetected for: 13 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified law enforcement
Initial access: exploit_public_facing

During the incident: Took immediate steps to block the unauthorized access
Launched an investigation of the incident with the support of leading outside cybersecurity experts
Notified law enforcement
Offering two years of complimentary identity monitoring services through Kroll
Deployed additional security measures and tools with the guidance of third-party experts
Changes made: Deployed additional security measures and tools with the guidance of third-party experts to strengthen the ongoing security of its network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(178 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://consumer.sc.gov/sites/consumer/files/Documents/Security%20Breach%20Notices/Orrick%20Herrington%20Sutcliffe%20LLP-Consumer%20Notice.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 7, 2023
Raw hash: 4b29c3d91224b4610e3ae698b019cf2ff3f4de784aa6320498cd6734630ee615

Reporting entityOrrick, Herrington & Sutcliffe LLP

Victim entityOrrick, Herrington & Sutcliffe LLP

Incidentdiscovered Mar 13, 2023

Stated responseTook immediate steps to block the unauthorized access

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov